Array value "null" is error in pre-processor

[dcmartin]

If an specified array value in a stream is null the pre-processor indicates an invalid value; I have not checked to determine if a value of [] suffices to eliminate this error, but IMHO null should be a valid value for both array and struct; in my instance I have an array of struct of string and bigint

For example:

[{"count":5,"detected":[{"count":3,"entity":"car"},{"count":2,"entity":"truck"}],"event":{"camera":"woodshed","device":"ftpcams"}}]
[{"error":"error in preprocessor: invalid data type for detected, expect array but found <nil>(<nil>)"}]
[{"count":7,"detected":[{"count":1,"entity":"cow"},{"count":3,"entity":"dog"},{"count":2,"entity":"person"},{"count":1,"entity":"sheep"}],"event":{"camera":"sheshed","device":"netcams"}}]
[{"count":1,"detected":[{"count":1,"entity":"person"}],"event":{"camera":"foyer","device":"ftpcams"}}]

[jinfahua]

@dcmartin We'll fix the issue in the next release. Thanks for your feedback!

[ngjaying]

Released at v0.3.0